//#region src/utils/ml-distance/similarities.ts
/**
* Returns the average of cosine distances between vectors a and b
* @param a - first vector
* @param b - second vector
*
*/
function cosine(a, b) {
	let p = 0;
	let p2 = 0;
	let q2 = 0;
	for (let i = 0; i < a.length; i++) {
		p += a[i] * b[i];
		p2 += a[i] * a[i];
		q2 += b[i] * b[i];
	}
	return p / (Math.sqrt(p2) * Math.sqrt(q2));
}
//#endregion
export { cosine };

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